Pencil sharpener

Details Pencil sharpener Pencil sharpener

1985-06-24

1988-12-06

Rademaker, Charles A.

Office supplies; artists and teachers materials

Office equipment not elsewhere specified

Perforating or cutting

Patent

active

D02988402

REFERENCES:
patent: D211297 (1968-06-01), Zar et al.
patent: D219318 (1970-11-01), Macowski
OA Magazine, 6-1964, p. 18, "Boston Electric", sharpener.

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